constructorchain.cpp

来自「C++高级编程这本书所附的源代码」· C++ 代码 · 共 33 行

#include <iostream>

using namespace std;

class Something
{
public:
  Something() { cout << "2"; }
  virtual ~Something() { cout << "2"; }
};

class Parent
{
public:
  Parent() { cout << "1"; }
  virtual ~Parent() { cout << "1"; }
};

class Child : public Parent
{
public:
  Child() { cout << "3"; }
  virtual ~Child() { cout << "3"; }

protected:
  Something mDataMember;
};

int main(int argc, char** argv)
{
  Child myChild;
}